Perhaps you should try some spelling variations:
oral communication » mobile communication, _ communication, risk communication
technologies new » technologies _, technologies a
new information » _ information, energy information, chief information
de development » e development, de developpement, code development
development co » development _, development a, development case
flows do » flows _
do oral » do rural

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: technologies new information flows do oral communication _ de development co afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies new information flows do oral communication _ de development co afrique.*.